This work provides a constructive avenue for designing high-performance ZIHCs electrode materials. The assembled ZIHCs exhibit excellent rate performance (140 mA h g-1 at 0.2 A g-1 and 86.2 mA h g-1 at 6.4 A g-1), high energy density and power density (111.1 W h kg-.2 W kg-1, respectively). Based on a clear understanding of the carbonization mechanism, assisted by DFT theoretical simulations, we find the optimal carbonization temperature of the DCP-derived porous carbon for ZIHCs. More importantly, the morphology evolution, heteroatom doping, and defect generation of the DCP during carbonization are clarified. In this study, we developed a simple self-template method for preparing N-doped porous carbon from D-calcium pantothenate (DCP). This standard applies to food nutritional fortification substance D-calcium pantothenate obtained by acylation of calcium aminopropionate and D-pantothenic. However, most of the reports focus on the preparation method and modification of porous carbon, and rarely explore the mechanisms of material synthesis/fabrication in the carbonization process. Due to the environmental friendliness and high safety of aqueous Zn-ion hybrid capacitors (ZIHCs), the exploration of high-performance porous carbon electrodes for ZIHCs has recently attracted significant attention.

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